Observations of intrinsic and UV-light initiated partial discharges (PD) in thin polyethersulfone (PES) foils

Author

Hodyr, K. ; Banford, H.M. ; Fouracre, R.A.

Author_Institution

Inst. of Radiat. Chem., Tech. Univ. Lodz, Poland

fYear

1999

fDate

1999

Firstpage

253

Abstract

The present work demonstrates a simple method for recording intrinsic partial discharge (PD) activity in thin polyethersulfone foils as a result of electrical stress. The polarity of the PD current is opposite to that of the applied voltage, or that previously applied, to the HV voltage electrode. Partial discharges were also initiated by exposure to UV-light from a laser source. These initiated discharges are delayed for 20 to 50 ns in relation to the excitation pulse. The discharges are attributed to the presence of gas filled voids

Keywords

foils; partial discharges; plastics; polymer films; ultraviolet radiation effects; voids (solid); PD current polarity; UV-light initiated partial discharges; electrical stress; excitation pulse; gas filled voids; initiated discharge delay; intrinsic partial discharge activity; laser source; thin polyethersulfone foils; Electric variables measurement; Electrodes; Grounding; Lighting; Partial discharges; Pulse amplifiers; Pulse circuits; Pulsed power supplies; Stress; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 1999 Annual Report Conference on

Conference_Location

Austin, TX

Print_ISBN

0-7803-5414-1

Type

conf

DOI

10.1109/CEIDP.1999.804638

Filename

804638